Publications by authors named "Qiu-Lian Deng"

Background: Kawasaki disease (KD) is a systemic form of self-limited vasculitis in children less than five years old, and the main complication is coronary artery injury. However, the etiology of KD remains unclear. The polymorphisms rs16944 GG and rs1143627 AA and their diplotype GA/GA have been associated with significantly increased risk of intravenous immunoglobulin (IVIG) resistance in a Taiwanese population, but the relationship between rs16944 A/G and rs1143627 G/A and coronary artery lesions (CALs) in patients with KD has not been investigated.

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() is one of the most frequently isolated pathogens in neonatal cases of early and late-onset sepsis. Drug resistance profiles and carriage of toxin genes may affect the treatment and outcome of an infection. The present study aimed to determine the antimicrobial resistance patterns and frequencies of the toxin-associated genes conserved virulence factor B (CvfB), staphylococcal enterotoxin Q (SEQ) and staphylococcal enterotoxin K (SEK) among isolates recovered from paediatric patients with bloodstream infections (BSIs) in Guangzhou (China).

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Objective: To investigate the resistance profiles and the trend of bloodstream-infecting pathogens isolated from hospitalized patients during 2004-2010.

Methods: The bloodstream isolates were collected from 18 hospitals in 17 cities. Minimum inhibition concentrations (MIC) were determined using the agar dilution method recommended by CLSI (Clinical and Laboratory Standards Institute), and susceptibility results were analyzed according to the 2011 CLSI guideline.

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Article Synopsis
  • The study aimed to analyze the molecular features of MRSA strains from children in seven Chinese cities, focusing on type and prevalence of different strains.
  • A total of 134 MRSA isolates were examined using PCR techniques, revealing various sequence types and SCCmec types, with CC59 and SCCmec type IV being the most common.
  • Results indicated that most MRSA cases were linked to pneumonia and skin infections, with significant variation in prevalent clones across different regions, particularly emphasizing the dominance of the ST59-MRSA-IVa(t437) in many areas.
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Article Synopsis
  • A study was conducted to analyze the types and drug resistance of Streptococcus pneumoniae in Chinese children under 5 with pneumonia, involving 3,865 participants and 338 bacterial samples.
  • The most common serotypes identified were 19F, 19A, 23F, 6B, and 14, with PCV7, PCV10, and PCV13 potentially covering a significant portion of these strains.
  • Only 1.8% of the isolates were penicillin-resistant, but nearly all were resistant to erythromycin, highlighting the high drug resistance of serotype 19A and suggesting that PCV13 would be more effective in preventing disease due to its coverage of this serotype.
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Objective: To clone UreB gene of Helicobacter pylori (H. pylori) isolated from children to pGEX-4T-1 expression plasmid, and do sequence analysis.

Methods: A pair of specific primer was designed according to H.

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Objective: To investigate the antimicrobial resistance and penicillin resistance-associated genes (TEM and pbp2B) of Streptococcus pneumoniae (S. pneumoniae) isolated from sputum specimens of Guangzhou children with respiratory tract infection.

Methods: E-test and Kirby-Bauer methods were applied to detect the antibiotic susceptibility of 44 strains of S.

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Objective: To investigate the incidence of campylobacter jejuni (CJ) infection and the drug resistance of CJ in children with diarrhea in Guangzhou.

Methods: The fecal samples of 3,351 children with diarrhea between July 2005 and June 2008 were collected for CJ culture. The species of CJ strains were identified by Lior methods.

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Objective: To study the distribution and antibiotic resistance of the isolated pathogens from children with infectious diarrhea in Guangzhou.

Methods: The fecal samples of 2 409 children with infectious diarrhea between January 2006 and December 2007 were collected and cultured. Pathogenic bacterium were isolated and identified by biochemical and serological methods.

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Objective: To study the drug resistance profiles of extended spectrum beta lactamase (ESBL) producing Escherichia coli (E. coli) and provide guidance for pediatric clinical prescription.

Methods: 5127 strains of ESBL producing E.

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Objective: To investigate the antimicrobial resistance of Streptococcus pneumoniae (S.pneumoniae) isolated from Chinese children with pneumonia.

Methods: Hypopharyngeal aspirate specimens were collected from hospitalized children with pneumonia who were admitted to the children's hospital located in Beijing, Shanghai, Guangzhou or Shanghai from February 16, 2006 to February 16, 2007.

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Objective: The present study was designed to investigate the situation of serotype distribution and beta-lactam antibiotics resistance of Streptococcus pneumoniae (S. pneumoniae) isolated from Chinese children, and to further understand the significance of vaccine for preventing infection caused by the bactria and controlling the resistance to antibiotics.

Methods: Nasopharageal swab specimens were collected from randomly selected less than 5-year-old out-patients with upper respiratory infection in Beijing, Shanghai and Guangzhou, 2000 - 2002.

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Objective: To investigate the situation of antibiotic resistance of Streptococcus pneumoniae (Sp) and Hemophilus influenzae (Hi) clinical isolates from children in Guangzhou area.

Methods: The authors cultured, isolated and identified the Sp and Hi strains from nasopharyngeal secretion of patients who visited Guangzhou Children's Hospital for upper respiratory tract infection between 2003 and 2004. K-B disc diffusion and E-test for antibiotic susceptibility were performed for these clinical isolates.

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Objective: To investigate the carrier rate of Streptococcus pneumoniae and the susceptibility of S. pneumoniae to 10 different antimicrobial drugs among children in China.

Methods: Nasopharageal swab specimens were collected from randomly selected 3578 out-patients with upper respiratory infection aged 1 month to 5 years in Beijing, Shanghai, and Guangzhou 2000-2002 so as to isolate S.

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Objective: To investigate the situation of antibiotic resistance of Haemophilus influenzae isolates from Chinese children.

Methods: Eight hundred and ninety-eight strains of H. influenzae isolated from randomly selected pediatric out-patients in Beijing, Shanghai and Guangzhou 2000 approximately 2002 underwent determination of antibiotic susceptibility by E test MIC method for beta-lactam antibiotics (ampicillin, amoxicillin/clavulanic acid, ceftriaxone, cefuroxime, and cefaclor) and KB disc diffusion method for chloramphenicol, tetracycline, sulfamethoxazole/trimethoprim (SMZ/TMP), azithromycin, and ciprofloxacin.

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